scholarly journals Bioacoustic analysis of a compound sound with stridulation and forced air produced by the larva of Phileurus valgus (Olivier, 1789) (Coleoptera: Scarabaeidae: Dynastinae: Phileurini)

2021 ◽  
Vol 47 (2) ◽  
pp. 187-194
Author(s):  
Manuel D. Barria ◽  
Dora Isabel Quirós ◽  
Daniel Emmen

It was observed that Phileurus valgus larvae are capable to emit stridulation and forced air sound when disturbed, being able to emit a “compound sound”. Duration, frequencies, oscillograms, spectrograms of the sounds obtained are presented. The results obtained are compared with previous studies and the possible communicative or warning functions they may have in their natural environment when interacting with other larvae (other species) or their congeners (same species). The audios obtained in the study are shared.

2019 ◽  
Vol 42 ◽  
Author(s):  
Laurel Symes ◽  
Thalia Wheatley

AbstractAnselme & Güntürkün generate exciting new insights by integrating two disparate fields to explain why uncertain rewards produce strong motivational effects. Their conclusions are developed in a framework that assumes a random distribution of resources, uncommon in the natural environment. We argue that, by considering a realistically clumped spatiotemporal distribution of resources, their conclusions will be stronger and more complete.


2018 ◽  
Vol 41 ◽  
Author(s):  
Daniel Crimston ◽  
Matthew J. Hornsey

AbstractAs a general theory of extreme self-sacrifice, Whitehouse's article misses one relevant dimension: people's willingness to fight and die in support of entities not bound by biological markers or ancestral kinship (allyship). We discuss research on moral expansiveness, which highlights individuals’ capacity to self-sacrifice for targets that lie outside traditional in-group markers, including racial out-groups, animals, and the natural environment.


Author(s):  
Robin Attfield ◽  
Andrew Belsey
Keyword(s):  

Author(s):  
Roy W. Pickens ◽  
Steven W. Gust ◽  
Philip M. Catchings ◽  
Dace S. Svikis
Keyword(s):  

EDIS ◽  
2013 ◽  
Vol 2013 (11) ◽  
Author(s):  
George Hochmuth ◽  
Laurie Trenholm ◽  
Don Rainey ◽  
Esen Momol ◽  
Claire Lewis ◽  
...  

Proper irrigation management is critical to conserve and protect water resources and to properly manage nutrients in the home landscape. How lawns and landscapes are irrigated directly impacts the natural environment, so landscape maintenance professionals and homeowners must adopt environmentally-friendly approaches to irrigation management. After selecting the right plant for the right place, water is the next critical factor to establish and maintain a healthy lawn and landscape. Fertilization is another important component of lawn and landscape maintenance, and irrigation must be applied correctly, especially following fertilization, to minimize potential nutrient losses. This publication supplements other UF/IFAS Extension publications that also include information on the role of soil and the root zone in irrigation management. This publication is designed to help UF/IFAS Extension county agents prepare materials to directly address nutrient losses from lawns and landscapes caused by inadequate irrigation management practices. This 6-page fact sheet was written by George Hochmuth, Laurie Trenholm, Don Rainey, Esen Momol, Claire Lewis, and Brian Niemann, and published by the UF Department of Soil and Water Science, October 2013. http://edis.ifas.ufl.edu/ss586


2018 ◽  
Vol 15 (1) ◽  
pp. 55-65 ◽  
Author(s):  
Mari Korpela

Increasing numbers of “Western” families spend several months a year in Goa, India, and the rest of the time in the parents’ passport countries or elsewhere. These “lifestyle migrants” are motivated by a search for “a better quality of life”, and the parents often claim that an important reason for their lifestyle choice is that it is better for the children to be in Goa, where they have enriching experiences and enjoy playing freely outdoors, in a natural environment. This article discusses parents’ and children’s views of this lifestyle. It argues that although the lifestyle sometimes causes moral panic among outsider adults who see regular transnational mobility as a sign of instability, a closer look reveals that there are various aspects of stability in the children’s lives. Paying careful attention to the parents’ and children’s own accounts, and the empirical realities of their lives, enables us to reach beyond normative judgements.


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